Displaying 5 results from an estimated 5 matches for "agec".
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2012 Jul 06
3
Tables extraction in R ?
Hi,
I 'm a novice user of R statistics and my hands-on experience with it is
minimal.
I want to create a table for my MBA course assignment that looks like the
ones that SPSS and MS Excel produces ,the data that the table has to include
are the following :
> table(agec)
agec
1 2 3
749 160 32
> x=table(agec)
> x
agec
1 2 3
749 160 32
>
> prop.table(x)
agec
1 2 3
0.79596174 0.17003188 0.03400638
> prop.test(749,941)
1-sample proportions test with continuity correction
data: 749 out of 941, nu...
2012 Oct 08
1
Survival prediction
...urvival cox-model, which includes a covariate * time interaction. (non-proportionality detected)
> I am now wondering how could I most easily get survival predictions from my model.
>
> My model was specified:
> coxph(formula = Surv(event_time_mod, event_indicator_mod) ~ Sex +
> ageC + HHcat_alt + Main_Branch + Acute_seizure + TreatmentType_binary +
> ICH + IVH_dummy + IVH_dummy:log(event_time_mod)
>
> And now I was hoping to get a prediction using survfit and providing new.data for the combination of variables
> I am doing the predictions:
> survfit(cox,...
2011 Jun 01
1
How to write random effect in MCMCglmm
...levels)
- yr (num: 2006, 2007, ...)
- Male (num: 0=not Male, 1=Male - 2 levels)
- Ethnicity (Factor: A, B, H, ..., - 7 levels)
- ELL (num: 0, 1, - 2 levels)
- Disability (num: 0, 1, - 2levels)
- avgTransfers (num with missing values)
- sdTransfers (num with missing values)
- agec (num with missing values)
- PctELL (num)
- PctDisability (num)
- PctMale (num)
Random Effects:
- Schoolid, Teacherid, Studentid
library(MCMCglmm)
y <- MCMCglmm(factor(Level) ~ Type+factor(yr>=2006)+Male+Ethnicity+ELL+
avgTransfers+sdTransfers+agec+Disability+ELL*pctELL+...
2009 Apr 24
3
Help with for/if loop
...ave a set of data that includes various data columns. One if the survival
time and another if a continuous variable of ages. I want to put the ages
into intervals so that I can then perform the Kalpan Meier test. I am trying
to use the following code to build a column with the age group numbers in
agecatagory<-c( )
for (i in 1:137)
{
{
if(age[i]<=46) {agecat[i]<-1}
if(age[i]>46 & age[i]<= 58) {agecat[i]<-2}
if(age[i]>58) {agecat[i]<-3}
}
agecatagory<-c(agecatagory, agecat[i])
}
I have been getting various errors for various things and have finally got
it so that...
2003 Jun 06
2
Moran's index
Hi,
I am looking for some code for Moran's I. Has anyone previously done this?
I have been unable to find it in the search engines.
James